Cochlea's graded curvature effect on low frequency waves

被引：52

作者：

Manoussaki, D ^{[1
]}

Dimitriadis, EK

Chadwick, RS

机构：

[1] Vanderbilt Univ, Dept Math, Nashville, TN 37240 USA

[2] NIH, Div Bioengn & Phys Sci, ORS OD, Bethesda, MD 20892 USA

[3] NIDCD, Sect Auditory Mech, NIH, Bethesda, MD 20892 USA

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.96.088701

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In the ear, sound waves are processed by a membrane of graded mechanical properties that resides in the fluid-filled spiral cochlea. The role of stiffness grading as a Fourier analyzer is well known, but the role of the curvature has remained elusive. Here, we report that increasing curvature redistributes wave energy density towards the cochlea's outer wall, affecting the shape of waves propagating on the membrane, particularly in the region where low frequency sounds are processed.

引用

页数：4